You should be able to accumulate counters during process switching or a timer routine, I managed to implement perfctr(another profiling software) for godson-2 cpu, for both cases with/without interrupt support. You can look at generic perfctr code. colin 写道: > Hi all, > Our SOC has performance counters, and we would like to use oProfile on it. > After surveying the oProfile doc, I found that the model of our performance > counters donot seem to fit oProfile. > This is because oProfile uses the interrupts caused by overflow of, say, > cache miss count to estimate the probability of this event in every portion. > Our SOC doesn't emit interrupt when event count overflow. Therefore, > oProfile cannot be used to estimate cache miss event on our chip. Is that > right? > > Regards, > Colin > > > > > > > > > > > >
